Unit-1 Writing Paragraphs-1
The aim of this unit is to help you in a systematic manner to write good paragraphs.
Mitosis is when a cell divides and replicates itself. There are four major steps in the process. The first step in mitosis is the prophase. The prophase occurs when the chromosomes in a cell squish together and become visible and the nucleolus disappears. The second step is the metaphase where the chromosomes attach to spindle apparatus. The third step is the anaphase. By the end of this stage, there are now two complete sets of chromosomes at either side of the cell. The last step of mitosis is the telophase, which is when the two sets of chromosomes separate into two separate cells. Some cells, including fly embryos, take less than ten minutes to divide, while others can take up to year to divide. Regardless of the time it takes, all mitosis will follow the same steps.
a) In which stage of mitosis does the cell have two complete sets of chromosomes?
b) How long does it take for mitosis to occur?